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05-18-2010, 08:37 AM
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#1 |
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Local Redneck Authority
Join Date: Mar 2009
Location: Grand Rapids, MI
Posts: 584
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4-speed issue
I pulled the top cover off my SM465 last night to see if everything looks ok. All was well, but when I put the cover back on, it seems like the shifter is stuck in 1st gear. I don't know where my problem is, if it went back together the same as coming apart, I figured all was well. Any idea if it's in the gearbox or in the shift cover?
Thanks |
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05-18-2010, 08:52 AM
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#2 |
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Junior Member
Join Date: Dec 2006
Location: Southeast Missouri
Posts: 2,436
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Re: 4-speed issue
Something is probably out of alignment in the transmission.
Normally when I take the cover off the old 4 speeds I put them in neutral, remove the shifter and then the cover. I guess I have been lucky so far, have not had a problem. Hopefully some one else will chime in on how to align the gear sliders. Danny
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'67 Chevy C-20 short stepper - build complete, 454/SM-465. '75 C-30 Single Cab DRW-350 small block/NP-435. '77 GMC-6500 Dump Truck, 427 Tall Deck. '92 GMC K-3500 Duallie, 454/4L80E. |
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05-18-2010, 11:39 AM
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#3 |
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Local Redneck Authority
Join Date: Mar 2009
Location: Grand Rapids, MI
Posts: 584
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Re: 4-speed issue
Cool, thanks. I might just have to tear it apart again and see if anything looks "off". I made sure the three forks were in line with the gears they slide into and it went together well. Look mom, no hammer!
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05-18-2010, 11:58 AM
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#4 |
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One of the First
 
Join Date: Jan 2000
Location: St. Augustine,FL.
Posts: 4,054
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Re: 4-speed issue
There is a specific way to take out and reinstall top plate with shift forks. Its always good to a OE Service manual or Chilton handy.
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06-04-2010, 12:14 PM
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#5 |
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Local Redneck Authority
Join Date: Mar 2009
Location: Grand Rapids, MI
Posts: 584
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Re: 4-speed issue
I posted this in my build, but figured I'd throw it in here too.
Here is an online manual for this gear box. http://www.zieglerdigital.ca/public/...sm465rbman.pdf |
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06-04-2010, 03:38 PM
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#7 |
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Registered User
Join Date: Aug 2001
Location: SOMERSET KY.
Posts: 6,427
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Re: 4-speed issue
KINDA REMINDS ME OF TAKING THE COVER OFF OF MY FIRST WATCH, & STOPPING THE LITTLE WHEEL THINGY WITH MY FINGER, & THEN HOLDING MY BREATH & HOPING I COULD START IT AGAIN. (40 SUM YEARS AGO) ONE THING I'VE LEARNED... IF YOU LOOK LONG ENOUGH FOR A NON-EXSISTING PROBLEM.. SOONER OR LATER YOU'LL FIND ONE (OR HAVE ONE)
 JOHN
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junkyardjohn 69 1 TON TOW TRUCK // 84 4WD CUCV BLAZER// 85 1 TON 4WD STAKE TRUCK// 86 M1031 5/4 TON 4WD CUCV// ALOT OF OLD TRUCKS FOR ONE OLD MAN TO DRIVE.  THERES ROOM FOR ALL OF GODS CREATURES RIGHT NEXT TO MY MASHED POTATOES//LIFE MEMBER OF P.E.T.A (PEOPLE EATING TASTY ANIMALS) DON'T RENT U-HAUL ALWAYS TELL THE TRUTH IT WILL AMAZE PART OF THE PEOPLE & ASTONISH THE REST |
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06-04-2010, 04:00 PM
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#8 |
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Registered User
Join Date: Oct 2005
Location: Overland Park, Ks.
Posts: 5,228
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Re: 4-speed issue
You have to put it halfway in reverse to get it to drop down. Move the reverse sliding gear till the groove is in the opening. You may have to put a little tension on it to keep it from sliding back. Then put the gear shift hale way in reverse & drop it on.
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06-04-2010, 06:32 PM
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#9 |
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Registered User
Join Date: Jun 2002
Location: Tucson AZ by way of WI & CA
Posts: 509
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Re: 4-speed issue
Had the same problem about a week ago. Wrenchbender nailed it. I found the last thing to come out is the finger holding the yoke were you want it.
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